BG8KUQ Because I noticed that in the post, your verified call sign information was actually on the right side, so I changed it to your OP name. Otherwise, if both your username and call sign were also included as verification information, they would overlap, which I find strange.
However, when looking at the "change card" system, it only shows the username.

Additionally, my username is simply a transliteration, "Lü Xiao Hei," which I have used for over ten years. It was also the name of our company. However, the framework of this website does not allow usernames to be in Chinese, so I had to use the transliteration.